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From Avery Ching <ach...@apache.org>
Subject Re: IPC error
Date Tue, 21 Feb 2012 00:04:15 GMT
Argh, I think you're right Sebastian.  We have an ArrayListWritable in 
Giraph as well that is used by MsgListWritable.

Avery

On 2/20/12 3:57 PM, Sebastian Schelter wrote:
> This looks like the code tries to invoke a no-arg constructor of
> ArrayWritable (which doesn't exist AFAIK). Do you use a custom
> writable? It needs to have a working no-arg constructor.
>
> --sebastian
>
> 2012/2/21 Avery Ching<aching@apache.org>:
>> I wonder if Giraph is compiled with the correct Hadoop version?  What is the
>> Hadoop version you're using?
>>
>> Avery
>>
>>
>> On 2/20/12 3:41 PM, David Garcia wrote:
>>> Hello all,  I'm getting this error and I'm pretty sure that I have my
>>> class path stuff setup right. . .maybe not.
>>>
>>> ERROR org.apache.giraph.comm.BasicRPCCommunications:
>>> org.apache.hadoop.ipc.RemoteException: IPC server unable to read call
>>> parameters: java.lang.NoSuchMethodException:
>>> org.apache.hadoop.io.ArrayWritable.<init>()
>>> Any ideas?  This is on super step 0.
>>> -David
>>


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